>>61183201 (OP)
>>61183286
BTC 4x in 4 years? Maybe.
Better chance is Eth, XRP, Solana.
>what to buy
I'd split in several coins, select all top market value ones.
>ignore BNB
Top by market value are Bitcoin, Etherium, XRP, Solana.
Split into 3 or 4 top ones, buy evenly, stay put (don't sell if something falls).
You are spreading the risk.